Fertilizer Trials Two fertilizer trials were conducted in 2005. One in Clinton Co. and one in Brown Co., Ohio. Sources of nitrogen were compared. The effects

Fertilizer Trials

Two fertilizer trials were conducted in Two fertilizer trials were conducted in 2005. One in Clinton Co. and one in 2005. One in Clinton Co. and one in Brown Co., Ohio. Sources of nitrogen Brown Co., Ohio. Sources of nitrogen were compared. The effects of nitrogen were compared. The effects of nitrogen fertilizer are clear increasing yields 600 to fertilizer are clear increasing yields 600 to 900 lb/a and value by $1100 to $2000 over 900 lb/a and value by $1100 to $2000 over plots that received no nitrogen fertilizer plots that received no nitrogen fertilizer other than existing nitrogen. The soil other than existing nitrogen. The soil fertility was considered good prior to fertility was considered good prior to fertilization in Brown Co.fertilization in Brown Co.

Effects of Nitrogen Source on Burley Yield

Clinton Co. – Randall Neal Farm

180 157 182 170 173

524 506 576 509 537

551 521 492 533 473

247 269 264 233 251

69

200

170

44

35014351444151514531502

0

500

1000

1500

2000

AN CN SN 15-0-14 14-0-14 LSD 0.05

Yie

ld l

b/a

Flyings Lugs Leaf Tips Total

All plots received 450 lb/a Ammonium Nitrate Broadcast followed by 100 lb/a N from the sources listed at sidedressing. AN = Ammonium Nitrate. CN = Calcium Nitrate, SN = Sodium Nitrate, 15-014 is a sodium/potassium nitrate mix and 14-0-14 is a calcium/potassium nitrate mix

Effects of Nitrogen Source on Burley Yield – Ring/Hall Farm Southern Ohio

863 694 742 900 778 700

15631368

1649 1507 1634

938

354

391384 389 378

256

187

497

69

2780 2453 2775 2797 2790 1893 669

0

500

1000

1500

2000

2500

3000

Yie

ld l

b/a TIPS

LUGS/LEAF

FLYINGS

15-15-15 contains Ammonium Nitrate (AN), CN = Calcium Nitrate, 15-0-14 is a sodium/potassium nitrate mix, & 14-0-14 is a calcium/potassium nitrate mix.

Soil fertility was high prior to establishment of the crop.

Effects of Nitrogen Source on Burley Grades – Ring/Hall Farm Southern Ohio



TreatmentTreatment FlyingsFlyings Lugs/LeafLugs/Leaf TipsTips15-15-1515-15-15

--X-2 B-1 T-1

450AN450AN

300AN300ANX-3 B-2 T-2

450AN450AN

645CN645CNX-2 B-1 BFR-1

450AN450AN

625(15-0-14)625(15-0-14)X-1 BFR-2 T-1

450AN450AN

714(14-0-14)714(14-0-14)X-1 B-1 T-1

--

--X-4 B-3 T-3

Effects of Nitrogen Source on Burley Value – Ring/Hall Farm Southern Ohio

1329 1013 1143 1440 1245 854

24232052

25562411 2533

1332

591

618

634 650 631

379

4343 3683 4332 4501 4409 2565

0

1000

2000

3000

4000

5000

$TIPS

LUGS/LEAF

FLYINGS



Fertilizer trialsRates of nitrogen fertilizer were tested at the UK farm in Woodford County. Half of the plots were rain-fed and the other half were irrigated with subsurface drip irrigation. The rain-fed plots showed no response to nitrogen above 100 lbs./A.In the irrigated plots yield increased with increasing nitrogen up to 250 lbs. N/A.

Nitrogen rates were also tested at UK’s Spindletop Farm withsurface drip irrigation for all plots. This was the first year for tobacco on this site after two years of sod. Yields were highfor all treatments even those receiving only 80 lbs. N/A. Therewere no significant yield increases for added nitrogen above160 lbs. N/A. Evaluations of the leaf by company buyers indicated a slight preference for leaf grown under moderate nitrogen levels.

No-till Fertility Trial (Not Irrigated)Woodford Co. – UK farm

235 203 220 204 240 204 206

457 409 469 382 483

456 461 508 445 518457

473

378 423412 417 419

397 313331

178219

465 453 388 283

446 378

363

1495135714511536 1631160614971525 1334

0

500

1000

1500

2000

2500

3000

0 AN 148 AN 296 AN 444 AN 592 AN 740 AN 50 N(28%)

100 N(28%)

150 N(28%)

Yie

ld lb

/a

Flyings Lugs Leaf Tips

Sidedress

100 lbs N applied preplant (28%).

No-till Fertility Trial (Irrigated)Woodford Co. – UK farm

294 305 310 355 337 411 347

688 840973 767 878

631697 711

721 877695 607

371424 447

465 443452 405 421

355344

719916 872

283

719581

324

2252227823872515 2574218822661984 1967

0

500

1000

1500

2000

2500

3000

0 AN 148 AN 296 AN 444 AN 592 AN 740 AN 50 N(28%)

100 N(28%)

150 N(28%)

Yie

ld lb

/a


Sidedress

100 lbs N applied preplant (28%).

No-till Fertility Trial Woodford Co. – UK farm

0

500

1000

1500

2000

2500

3000

3500

0 50 100 150 200 250 300

Rate of sidedress nitrogen (lbs. N/A)

Cu

re

d le

af

yie

ld (

lbs

./A

)

34-0-0 Not Irrigated34-0-0 Irrigated28-0-0 Not Irrigated28-0-0 Irrigated

100 lbs N applied preplant as 28-0-0.

Nitrogen Fertilizer TestFayette County – Spindletop Farm

TreatmentTreatment

##

Preplant N Preplant N (lbs./A)(lbs./A)

Sidedress N Sidedress N (lbs./A)(lbs./A)

Total NTotal N

(lbs./A)(lbs./A)

11 8080 00 8080

22 8080 5050 130130

33 8080 100100 180180

44 160160 00 160160

55 160160 5050 210210

66 160160 100100 260260

77 240240 00 240240

88 240240 5050 290290

99 240240 100100 340340


294 344 368 348 294 370 376

1112 1190 10801250 1268

1398 1332 1516 14621245

1311 1271

371 320 403 371351 412 342 342

157333386

9851487 1121 283 337

24713971425

118

394

2553256327233163260 3376327331853174 3460

0

500

1000

1500

2000

2500

3000

3500

1 2 3 4 5 6 7 8 9 LSD

Yie

ld lb

/a



0.081.401.391.371.43 1.361.461.351.41 1.40

0

0.25

0.5

0.75

1

1.25

1.5

1.75

2

1 2 3 4 5 6 7 8 9 LSD

Avg

. pri

ce (

$/lb

s.)


Weighted Avg. price for crop

Value of Nitrogen Fertilizer TestFayette County – Spindletop Farm

353 407 454 432 355 429 491

1312 1485 1512 1680 1702

2041 1912 2278 2134 1818 1914 1825

580 495648 581 544 642 452 534

186396463

13791894 1492 283 462

35519302080

176604

4144552454845274659 4610476042984286 4837

0

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

1 2 3 4 5 6 7 8 9 LSD

$


Documents

Fertilizer Trials Two fertilizer trials were conducted in 2005. One in Clinton Co. and one in Brown Co., Ohio. Sources of nitrogen were compared. The effects